Fig. 12.—Incised figures in sandstone near Miller's Cave.[ToList]

The front part of the outer cave is partially filled with large rocks, gravel, and clay, which have fallen or been washed in. A window-like opening on the right, or south, side admits additional light. Near the inner end the cave divides, one branch going to the southeast and opening in the face of the bluff, the other turning north and terminating abruptly near the doorway, which is worn through its rear wall. A rough diagram (fig. 13) with some measurements is appended to show this cavern's peculiar structure.

Feet.
Width at mouth (A)17
From mouth to "window" (B)21
Width of window (B), which has a very irregular outline3
From window to where cave divides (C)39
From corner of divide (c) to opposite corner (H)13
From corner (H) to rear wall11
Greatest width, from (B) to (F)22
Width from (C) to (G)10
From north wall near (G) to face of bluff (D)28
Height at mouth from talus to roof8
Height from floor to roof between (C) and (G)13
Lowest point in the cave (near C), below entrance (A)7
Mouth, at (D), lower than floor at (C)4

A small amount of refuse on the floor suggested use of the outer cave for residence or shelter; but excavations at several points uncovered bedrock, with very irregular surface, at depths of 6 inches to 2 feet, the earth containing very little refuse and no ashes. On the talus at the entrance, and also at the bottom of the bluff in which the caves open, is much refuse which the inmates threw out as rubbish.

Fig. 13.—Plan of Miller's Cave.[ToList]

The front chamber of the main cavern is quite regular in form, going straight back like a vault for 80 feet, then turning abruptly westward with a width of 47 feet, the west wall making almost a right angle at the corner. The east wall abuts squarely against the rear; a narrow crevice leads eastward from their junction, but as this was filled with water and mud no exploration in it was attempted.

The floor of the front chamber, from wall to wall, and from near the front to within 27 feet of the rear, was entirely of ashes, no earth being visible until the extremity of these at either end was reached. The floor of the western extension is covered with fine earth, washed in, which gradually increases in volume until it fills the cave to within a foot of the roof. It was not examined beyond this point.

Measurements show these dimensions: