Dandy (T9S, R27E, Sec. 8NENE). This mine includes numerous workings spread over a 

 relatively wide area. Our attention was focused on two workings (adits 4 and 5) in the "Dandy 

 West Upper" site (61 10' elevation) and one working (adit 6) in the "Dandy West Lower" site 

 (6030' elevation). Most other sites in the Dandy Mine area are very shallow or lack underground 

 workings. We inspected the three adits on 25 July and 5 September. 



"Adit4" is the most extensive of the three workings, apparently with three levels (Madson and 

 Hanson 1993), the portal being on the upper-most level. We were unable to explore the working 

 beyond the first 120' (where we detected a lower level) because of standing water and deep mud 

 that accumulated in early July from a severe thunderstorm; standing water and mud were still 

 present on 5 September. The portal is immediately adjacent to a dry gully that directs ninoff into 

 the mine working, which is a decline beyond the portal. The adit splits about 70' beyond the 

 portal (and about 40' beyond a ceiling opening to the surface), with the left branch leading to the 

 lower workings, and the right branch about 60' long leading to a drift face. Water pools in the 

 right branch on this upper level of the mine. "Adit 5" is about 65' east of "Adit 4", and declines 

 slightly beyond the portal for about 120' to the drift face (deep mud prevented complete 

 inspection of this working). Passageways in both adits are large (at least 8-10' wide x 8-10' high, 

 and the portals of both are unobstructed. We found evidence of recent human visitation (boot 

 prints in the mud), but conditions made it difficuh to detect bats or bat droppings 



"Adit 6", down-slope from the other two, is a single level decline extending 345' to the drift face. 

 There are no significant side-workings off of the main passage, but there are two areas where 

 domes have been created along the passage. The passage declines 177' to the first dome (46 °F 

 and 94% relative humidity on 25 July), then is level thereon to the drift face (same temperature 

 and relative humidity). The portal is partly blocked by a wooden head frame and cross-bracing. 

 We found some evidence of recent human visitation (boot prints and trash). We found not bats 

 during our two inspections but noted scattered Myotis droppings below a dome near the portal 

 and at the drift face. 



At "Adit 4" we captured nine bats in four hours on 25 July (Table 1): three male Western Small- 

 footed Myotis, two male and three lactating female Western Long-eared Myotis, and one male 

 Big Brown Bat. On 4 September we captured 27 bats in three hours: 1 3 male and one female 

 Western Small-footed Myotis, five male and one female Western Long-eared Myotis, and four 

 male and three female Big Brown Bats. On 5 September netting ceased after two hours because 

 of rain, but we captured three male and one female Western Long-eared Myotis. At "Adit 5", 

 netted only on 25 July, we captured tliree male Big Brown Bats. At "Adit 6", netted only on 27 

 July, we captured a single male Western Small-footed Myotis in three hours, hi all cases, bats 

 were entering the mine workings when caught, although some bats at "Adit 4" entered via the 

 ceiling opening and then were caught exiting the portal. We also heard Spotted Bat clicking 

 overhead at the "Dandy West Upper" site (near adits "4" and "5") for about 5 seconds at 01:45 

 on 26 July. 



CM & M (T9S, R27E, Sec. 4SW). On 27 July we checked two workings at this mine site, both 

 adits, for evidence of use by bats: "CM & M West" in Sec. 4SWSW (6500' elevation), and "CM 

 & M Pif in Sec. 4SESW (6470' elevation). The "Wesf adit is short (28' of level passage) with a 

 walk-in portal 9' tall x 9' wide leading to an open pit at the other end. Scattered Myotis 



