DIVISION MVE: — NAMKS. 389 



Columbia street. It is the outlet of Johnson's lake (formerly called Beau- 

 dry's), and forms the principal drainage of the great Johnson farm on the 

 hills west of Pasadena. The bed of this canyon for half a mile or so is a 

 mortar-like puddingstone or conglomerate, — called also ".cement rock," — 

 the same as the notable Eagle Rock, about two miles northwest from this 

 point ; and the exposed conglomerate here at the mouth of the canyon is an 

 eastward extension of the same ledge or stratum of this peculiar kind of 

 rock from which the Eagle Rock is an outcropping or uplifted head ; and 

 this same conglomerate ledge has been traced and identified across the 

 country as far eastward as Titus's artesian well, a mile or so south of Ea- 

 manda Park. In San Rafael canyon there is a small but pretty waterfall — 

 Puddingstone Falls — with a fine specimen of a pothole at their foot. In 

 this connection it is proper to give an account of the Eagle Rock above 

 referred to; and I here quote from the Valley Union of November 22, 1884: 



Eagle Rock. — " About three miles over the hills westward from Pasa- 

 dena stands a monster of a bald, rounded, weather-beaten rock which has been 

 called by various names, but it is best known as Eagle Rock, and gives its 

 name to Eagle Rock creek, Eagle Rock valley. Eagle Rock settlement. It is 

 probable that very few of our readers know why this name was given it. 

 although many Pasadenians have visited it as one of the natural curiosities 

 of this region. The west side of the rock presents a face of perhaps 150 

 feet in height, and in this face are two 'recesses called the upper and lower 

 cave. The lower cave can be reached by climbing along on slight pro- 

 tuberances of rock, although it is a somewhat difficult and dangerous 

 passage ; Mrs. Dr. Reid climbed there a few weeks ago, and says she wouldn't 

 attempt it again for a corner lot ; but the upper cave is inaccessible. Over a 

 year ago some adventurers made a rude ladder and climbed up it from the 

 lower to the upper cave, and left the ladder there as a testimony of their 

 daring and prowess. It was a constant bait of temptation to other young 

 fellows to risk their lives by attempting the perilous ascent, and finally it 

 was pitched over the precipice and destroyed. The overhanging portion of 

 the rock which forms the roof of the two caves, is so shaped that from some 

 points of view it presents a well defined appearance like the outspread wings 

 of an eagle, and that is what gave it the name of Eagle Rock. This 

 peculiar appearance is well seen from the west hill-side, half a mile or more 

 down the valley from the rock, and is also seen from Mr. Edwin Brown's 

 place, about two miles distant." 



The Tunnel. — Within a mile above Puddingstone Falls is the Beaudry 

 Tunnel, i6o paces long, through the range of hills which form the south 

 wall of this canyon. It was made by Prudence Beaudry, who formerly 

 owned the Johnson ranch, and resided there. In making it he had three 

 objects in view : ist, To provide an easy and direct road from his farm to 

 Eos Angeles, instead of going a long way around, with heavy up-and- 

 down-hill hauls. 2d, To pipe water down to Eos Angeles or its northerly 

 suburbs from a lake that he produced by using the material excavated from 

 the tunnel to build a dam across the canj^on, the dam serving also as road- 



